176 citations,
August 2015 in “The journal of allergy and clinical immunology/Journal of allergy and clinical immunology/The journal of allergy and clinical immunology”
Alopecia areata involves immune activation in the scalp, suggesting treatments targeting TH1, TH2, and IL-23 pathways.
Hair loss theories discussed include poor blood flow, scalp tension, inflammation, and DHT. Treatments mentioned are massaging scalp, minoxidil, finasteride, and RU58841.